There seems to be a Thottbot scoring problem with the new 2.4 items that have expertise on them.

Old items like the Shapeshifter's Signet http://thottbot.com/i30834 are calculated correctly when I score points in Skill rating. 

However, there are several new items with expertise on them that are not scored with Skill rating.  Here are the ones I found:

Inuuro's Blade http://thottbot.com/i34672
Legionfoe http://thottbot.com/i34673
Shattered Sun Pendant of Resolve http://thottbot.com/i34680
Band of Determination http://thottbot.com/i34706
Nightstrike http://thottbot.com/i34783
Shard of Contempt http://thottbot.com/i34472
Dragonscale-Encrusted Longblade http://thottbot.com/i34164
Collar of the Pit Lord http://thottbot.com/i34178

Here are some other scoring errors that I also found
Mama's Insurance http://thottbot.com/i30279 (doesn't have skill rating on it)
Ring of Unyielding Force http://thottbot.com/i29384 (doesn't have dodge on it)